Ext.js is pure Javascript framework that is used for building interactive cross-platform web applications such as desktops, tablets, and smartphones using techniques like Ajax, DHTML and DOM scripting. It provides pre-Integrated and tested UI Components such as HTML5 calendar, grids, pivot grid, D3.js

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Explain What is EXT.js?

Ext.js is pure Javascript framework that is used for building interactive cross-platform web applications such as desktops, tablets, and smartphones using techniques like Ajax, DHTML and DOM scripting. It provides pre-Integrated and tested UI Components such HTML5 calendar, grids, pivot grid, D3 adapter, trees, lists, forms, menus, toolbars, panels, windows, and much more. Read more from https://www.sencha.com/products/extjs/